Steam-boiler



(No Model.)

H. G. KEASBBY.

STEAM BOILER.

Patented Sept. 4, 1894.

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UNITED STATES PATENT OFFICE.

HENRY c.. KEASEEY, oE AMBLER, PENNSYLVANIA.

STEAM-BOILER.

SPECIFICATION forming part of Letters Patent No. 525,553, datedSeptember 4, 1894. Application iiled January 18,1894- Serial No.497,245. (No model.)

To aZZ whom it may concern:

Be it known that I, HENRY G. KEASBEY, a citizen of the United States,residing at Ambler, in the county of Montgomery, State of Pennsylvania,have invented a new and useful Improvement in Steam-Boilers, whichimprovement is fully set forth in the following specification andaccompanying drawings.

My invention consists of a steam boiler having a feed water heatingdevice, so combined therewith that the latter serves both to assist thecirculation and to gradually heat the water, while it is being convertedinto steam, the same being formed with separate chambers, which are incommunication in such manner that the water is caused to traverse theboiler alternately from top to bottom,vthrough`out the chambers inzig-zag order, whereby it is subjected to the action of the heatingflues which extend continuously in an unbroken line from end to end ofsaid boiler through said chambers andpartitions and steam is rapidly andeffectively generated at the fire box end of the boiler, all as will behereinafter set forth.

Figure 1 represents a longitudinal section of a steam boiler embodyingmy invention. Fig. 2 represents a side elevation of a portion of amodification. Fig. 3 represents a longitudinal section of aportion of amodification. Fig. 4. represents a side elevation of a portion of amodification.

Similar letters of reference indicate correspending parts in the severalfigures.

Referring to the drawings: A designates a steam boiler, and B designatesthe ilues therein for the passage of the products of combustion. Withinthe boiler are partitions or diaphragme C, which divide the boiler intochambers D, D', D2, D3, it being noticed that the ilues B pass throughsaid partitions and chambers.

Connected with the partitions, at or near the upper ends thereof, arepipes E, E', E, which extend downwardly therefrom, and open into thechambers which they occupy at or near the bottoms of the same, thusforming a communication between the chambers, and a zig-zag passage, forthe water throughout the boiler.4

TheV boiler and partitions C are provided with man-hole openings andplates F, for admission to the chambers for repairs, and

cleansing the boiler and pipes Gfor blowingout deposits or sediment, andemptying purposes.

S designates the lire box of the boiler,vthe steam space of which beingover the crown sheet, whereby the steam is finally generated inthehottest portion of the boiler. r

The operation is as follows: Water is directed by the feed pipe H intothe chamber D lof the boiler, and rising therein reaches the openingleading to the pipe E, so that the walter enters said pipe and isdirected by the same to the bottom of the chamber D', where it isdischarged. It then rises in said chamber D and reaches the pipe E', bywhich it is discharged at the bottom of the chamber D2, and thus theoperation continues through said chamber D2, the pipe E2 and chamber D3,it being noticed that while the water may be admitted into the boiler ina cold or cool condition, itis subjected to increased heat as itapproaches the furnace, and as it traverses the boiler in a zig-zagcourse, or alternately from bottom to top and topto bttom, it issubjected to increased heating surfaces presented by the flues which itpasses, so that steam will be effectively and rapidly generated, thesame entering the steam space J and steam dome K.

In Fig. 2, I show pipes L, which are located on the outside of theboiler, and communicate with the top of one chamber and' bottom of theadjacent chamber, as at M and N.

In Fig. 3, I show a pipe P, which is located within one of the chambersof the boiler, and passed through the shell of the boiler, where it isconnected outside of the same by a pipe Q, with the adjacent chamber,the operation however being the same as in Fig. l.

In Fig. 4, I show an upright boiler which is divided into horizontalchambers, and provided With pipes R, whereby the water enters the bottomof the upper chamber, discharges at the top of the same into a pipewhich lenters the next chamber below, at the bottom thereof, and so onthroughout the other cham,- bers, so that the course of the water iszigzag, or alternately from bottom to top and top to bottom through thedifferent chambers, the effect being the same asin the previous cases.

ICO

In two applications led by me of even date Y herewith, Serial Nos.497,243, and 497,244, for feed water kheating devices per sc separateand distinct from the boiler, I have shown and claimed aY constructionadapted in one case to utilize hot gases and products of combustionalone, one end of the heater being open and adapted to be connected withthe flue of a boiler and to receive the said hot gases therefrom, thesaid heater being adapted to be employed in connection with any style ofboiler desired, the other parts being also arranged with this especialobject in view. In the other case the feed water heater is adapted to beused in connection with a suitable source of steam heat alone, both endsof said heater having an inclosed chamber, and the location of steaminlet and outlet and drips, &c., therefor being arranged with thisespecial object in View. This heater being also designed to be used inconnection with any suitable construction of boiler.

In the present case the heater and boiler are combined into a singlestructure, and the connections from the different chambers to theseveral adjacent chambers are made pref erably exteriorly of the boiler.

Having thus described my invention, Vwhat I claim as new, and desire tosecure by Letters Patent, is

1. A steam boiler having partitions therein forming separate chambers,lues extending continuously in unbroken line from end to end of saidboiler, through said chambers and partitions, and pipes connecting withsaid chambers, exteriorly of the boiler, forming 35 communicationsbetween the said chambers in zig-zag order, the water being introducedinto a chamber remote from the tire box, and the steam chamber beingover the rc box,

said parts being combined substantially as 4e.

described.

2. A steam boiler having partitions therein, forming separate chambers,/lues extending continuously in unbroken line from end tn Y end of saidboiler, through said chambers and 4.5 partitions, pipes connecting withsaid chambers exteriorly ofthe boiler, forming communications betweenthe chambers, said pip extending alternately from bottom to top and,`

top to bottom of said chambers, a fire boxaul'`4 5o a steam dome, saidpartsbeing combined substantially as described.

3. A steam boiler provided with a re bell, f

HENRY G. KEASBEY.

WVitnesses:-

JOHN A. WIEDERSHEIM, R. H. GRAESER.

